A tripod is a portable three-legged frame or stand, used as a platform for supporting the

weight In science and engineering, the weight of an object is a quantity associated with the gravitational force exerted on the object by other objects in its environment, although there is some variation and debate as to the exact definition. Some sta ...

and maintaining the stability of some other object. The three-legged (triangular stance) design provides good stability against gravitational loads as well as horizontal

shear force In solid mechanics, shearing forces are unaligned forces acting on one part of a Rigid body, body in a specific direction, and another part of the body in the opposite direction. When the forces are Collinearity, collinear (aligned with each ot ...

s, and better leverage for resisting tipping over due to lateral forces can be achieved by spreading the legs away from the vertical centre. Variations with one, two, and four legs are termed ''

monopod A monopod, also called a unipod, is a single staff or pole used to help support cameras, binoculars, rifles or other precision instruments in the field. Camera and imaging use The monopod allows a still camera to be held steadier, allowing ...

'', ''

bipod A bipod is a V-shaped portable attachment that helps support and steady a device, usually a weapon such as a long gun or a mortar. The term comes from the Latin prefix and Greek root , meaning "two" and "foot" respectively. Bipods are design ...

'', and ''quadripod'' (similar to a

table Table may refer to: * Table (database), how the table data arrangement is used within the databases * Table (furniture), a piece of furniture with a flat surface and one or more legs * Table (information), a data arrangement with rows and column ...

Etymology

First attested in English in the early 17th century, the word ''tripod'' comes via

Latin Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area aroun ...

''tripodis'' ( GEN of ''tripus''), which is the

romanization In linguistics, romanization is the conversion of text from a different writing system to the Latin script, Roman (Latin) script, or a system for doing so. Methods of romanization include transliteration, for representing written text, and tra ...

Greek Greek may refer to: Anything of, from, or related to Greece, a country in Southern Europe: *Greeks, an ethnic group *Greek language, a branch of the Indo-European language family **Proto-Greek language, the assumed last common ancestor of all kno ...

(''tripous''), "three-footed" (GEN , ''tripodos''), ultimately from (''tri-''), "three times" (from , ''tria'', "three") + (''pous''), "foot". The earliest attested form of the word is the

Mycenaean Greek Mycenaean Greek is the earliest attested form of the Greek language. It was spoken on the Greek mainland and Crete in Mycenaean Greece (16th to 12th centuries BC). The language is preserved in inscriptions in Linear B, a script first atteste ...

, ''ti-ri-po'', written in

Linear B Linear B is a syllabary, syllabic script that was used for writing in Mycenaean Greek, the earliest Attested language, attested form of the Greek language. The script predates the Greek alphabet by several centuries, the earliest known examp ...

syllabic script.

Cultural use

Many cultures, including the ancient peoples of

China China, officially the People's Republic of China (PRC), is a country in East Asia. With population of China, a population exceeding 1.4 billion, it is the list of countries by population (United Nations), second-most populous country after ...

and

Greece Greece, officially the Hellenic Republic, is a country in Southeast Europe. Located on the southern tip of the Balkan peninsula, it shares land borders with Albania to the northwest, North Macedonia and Bulgaria to the north, and Turkey to th ...

, used tripods as

ornaments An ornament is something used for decoration. Ornament may also refer to: Decoration *Ornament (art), any purely decorative element in architecture and the decorative arts *Ornamental turning *Biological ornament, a characteristic of animals tha ...

trophies A trophy is a tangible, decorative item used to remind of a specific achievement, serving as recognition or evidence of merit. Trophies are most commonly awarded for sporting events, ranging from youth sports to professional level athletics. Add ...

, sacrificial

altars An altar is a table or platform for the presentation of religious offerings, for sacrifices, or for other ritualistic purposes. Altars are found at shrines, temples, churches, and other places of worship. They are used particularly in Christian ...

, cooking vessels or cauldrons, and decorative ceramic pottery. Tripod pottery have been part of the archaeological assemblage in China since the earliest Neolithic cultures of Cishan and

Peiligang The Peiligang culture was a Neolithic culture in the Yi-Luo river basin (in modern Henan Province, China) that existed from about 7000 to 5000 BC. Over 100 sites have been identified with the Peiligang culture, nearly all of them in a fairly ...

in the 7th and 8th millennia BC. Sacrificial tripods were found in use in ancient

usually cast in bronze but sometimes appearing in ceramic form. They are often referred to as " dings" and usually have three legs, but in some usages have four legs. The Chinese use sacrificial tripods symbolically in modern times, such as in 2005, when a "National Unity Tripod" made of bronze was presented by the central Chinese government to the government of northwest China's

Xinjiang Uygur Autonomous Region Xinjiang,; , SASM/GNC: previously romanized as Sinkiang, officially the Xinjiang Uygur Autonomous Region (XUAR), is an autonomous region of the People's Republic of China (PRC), located in the northwest of the country at the crossroads ...

to mark its fiftieth birthday. It was described as a traditional Chinese sacrificial vessel symbolizing unity. In ancient Greece, tripods were frequently used to support

lebes The lebes (, plural ''lebetes'') is a type of ancient Greek pottery, ancient Greek cauldron, normally in bronze. It is a deep bowl with a rounded bottom. It was often supported by a sacrificial tripod. In classical times, a foot was attached and i ...

, or cauldrons, sometimes for cooking and other uses such as supporting vases.

Firearms

Tripods are commonly used on machine guns to provide a stable mount for the weapon when firing. Tripods are generally restricted to heavier weapons where the weight would be an encumbrance. For lighter weapons such as

rifle A rifle is a long gun, long-barreled firearm designed for accurate shooting and higher stopping power, with a gun barrel, barrel that has a helical or spiralling pattern of grooves (rifling) cut into the bore wall. In keeping with their focus o ...

s, a

is more common. However, in recent times

tripod saddle A weapon mount is an assembly or mechanism used to hold a weapon (typically a gun) onto a platform in order for it to function at maximum capacity. Weapon mounts can be broken down into two categories: static mounts and non-static mounts. Stati ...

s have become popular for precision rifle shooting sports, with the weapon placed in a

vise A vise or vice (British English) is a mechanical apparatus used to secure an object to allow work to be performed on it. Vises have two parallel jaws, one fixed and the other movable, threaded in and out by a screw and lever. The jaws are ofte ...

-like rest which is mounted to a

tripod head A tripod head is the part of a tripod (photography), tripod system that attaches the supported device (such as a camera) to the tripod legs, and allows the orientation of the device to be manipulated or locked down. Modular or stand-alone tripod ...

or with the weapon mounted directly to the tripod head.

Photography

Surveying

Astronomy

The astronomical tripod is a sturdy three-leg stand used to support telescopes or binoculars, though they may also be used to support attached cameras or ancillary equipment. The astronomical tripod is normally fitted with an altazimuth or

equatorial mount An equatorial mount is a mount for instruments that compensates for Earth's rotation by having one rotational axis, called ''polar axis'', parallel to the Earth's axis of rotation. This type of mount is used for astronomical telescope mount, tel ...

to assist in tracking celestial bodies.

Laboratory

References

External links

* * {{Commons category-inline, Tripods
Complete information of tripods
Firearm components Photography equipment Tools pl:Statyw sr:Tronožac